The Hybris yForms Module is required to integrate Orbeon Forms PE with SAP Hybris Commerce Suite. You can download it by following the relevant link below, depending on the version of SAP Hybris you are using:
For SAP Hybris Commerce Suite 6.3 and earlier, download , built on Orbeon Forms PE 4.8.1.
For SAP Hybris Commerce Suite 6.4, download , built on Orbeon Forms PE 2016.3.